skyjedi2005 said:

So not only can i not find the mono mix for dirty harry on the blu ray, Now i find Bullitt is also missing its original mono mix. Is this a kind of trend?

the average joe doesn't give a damn about original mixes. studios oblige and release 5.1/7.1 upmixes. luckily some studios see that it's time to revert that whole bs and include the original mixes. fox has shown a turn around for that matter. they even include lossless mono mixes on newer releases, e.g. brubaker. hopefully more studios will follow. especially universal and warner need to change their way of treating movie mixes.